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Understand convertRect:toView:, convertRect:FromView:, convertPoint:toView: and convertPoint:fromVie
... find out where some point of a view was in relation to its superview - to test if a view was moving off the screen, for example:
CGPoint originInSuperview = [superview convertPoint:CGPointZero fromView:subview];
The "receiver" is a standard objective-c term for the object that is receiving the m...
PHP - Extracting a property from an array of objects
...t (Newer PHP versions)
As @JosepAlsina said before the best and also shortest solution is to use array_column as following:
$catIds = array_column($objects, 'id');
Notice:
For iterating an array containing \stdClasses as used in the question it is only possible with PHP versions >= 7.0. But ...
Using union and order by clause in mysql
...ted answer is also the correct one. This just happened to work well when I tested it.
– rickythefox
Mar 29 '16 at 16:29
...
const vs constexpr on variables
...
I am sure as far as the examples I wrote go (tested each of them before posting). However my compiler does let me convert PI1 to a compile-time integral constant for use in an array, but not for use as a non-type integral template parameter. So the compile-time conver...
LINQ to Entities case sensitive comparison
...peration.Column.IsNullable.Value == true ? " NULL" : "NOT NULL" //todo not tested for DefaultValue
);
Statement(writer);
}
}
}
}
}
public class CustomApplicationDbConfiguration : DbConfiguration
{
public CustomA...
Why is it OK to return a 'vector' from a function?
...c[1] = -a[0] * b[2] + b[0] * a[2]; c[2] = a[0] * b[1] - b[0] * a[1];
}
I tested on Visual Studio 2017 with the following results in release mode:
8.01 MOPs by reference
5.09 MOPs returning vector
In debug mode, things are much worse:
0.053 MOPS by reference
0.034 MOPs by return vector
...
How can I run PowerShell with the .NET 4 runtime?
...ET 4.0 classes:
reg add hklm\software\microsoft\.netframework /v OnlyUseLatestCLR /t REG_DWORD /d 1
reg add hklm\software\wow6432node\microsoft\.netframework /v OnlyUseLatestCLR /t REG_DWORD /d 1
To update just the ISE to use .NET 4.0, you can change the configuration ($psHome\powershell_ise.exe....
Is it better to reuse a StringBuilder in a loop?
... two blocks - the JIT is still "warming up" StringBuilder during the first test. It may well be irrelevant, but interesting to try.
– Jon Skeet
Oct 28 '08 at 7:27
1
...
Use find command but exclude files in two directories
.../scripts/*" - Also exclude all results whose path starts with ./scripts/
Testing the Solution:
$ mkdir a b c d e
$ touch a/1 b/2 c/3 d/4 e/5 e/a e/b
$ find . -type f ! -path "./a/*" ! -path "./b/*"
./d/4
./c/3
./e/a
./e/b
./e/5
You were pretty close, the -name option only considers the basenam...
Colspan all columns
...
Tested [additionally] in IE6 - IE8, Chrome [on PC and Mac], Firefox 4.0 [PC and Mac], Safari 5 [PC and Mac]
– hndcrftd
May 6 '11 at 17:55
...